I received an error response.

Moved properties
Error codes are provided as HTTP status codes.
E.g.: If a property is not found status 404 is returned in the HTTP header with an XML document describing the error.
https://multicodes.giatamedia.com/webservice/rest/1.0/properties/1000000

<?xml version="1.0" encoding="UTF-8"?>
<error>
  <code>404</code>
  <description>could not retrieve data. please check request.</description>
</error>

Other examples include: 401 unauthorized, 403 forbidden, etc.

If there is an error response that you and your programmer cannot fix, we kindly ask you to send a screenshot of your screen to our Customer Success department (e-mail customer-success@giata.de).